HC Deb 25 February 1976 vol 906 c248W
72. Mr. Whitlock

asked the Secretary of State for the Environment what was the result of electroflotation tests on effluent and sewage treatment carried out at the Water Research Centre.

Mr. Denis Howell

I understand that the Water Research Centre will produce a report on this work in March. I shall write to my hon. Friend when the report is available.